Atomic Scientists Set 'Doomsday Clock'
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Doomsday clock just moved: How the clock measures modern fears, from nuclear arms to AI alarms; can time be reversed? | Here's what you need to know
India, Jan. 28 -- In a quiet announcement that echoes like an alarm, a panel of the world's leading scientists today delivered a sobering verdict on the state of our planet: humanity is now a mere 85 symbolic seconds from global catastrophe.
For many years, cesium atomic clocks have been reliably keeping time around the world. But the future belongs to even more accurate clocks: optical atomic clocks. In a few years' time, they could change the definition of the base unit second in the International System of Units (SI).